3. Whenever you want to access it, right click the 'GMail Drive' icon and click 'Login As...'. Remember to check 'Use secure HTTP' option under the 'More' tab.
Whatever you copy in it will be uploaded to your online GMail acount storage space. You can even password protect your files.

4. Voila!!

And if you ever manage to delete the GMail drive from your computer, it will still be accessible from any browser in your gmail account as a .bin file, which you will be able to open using winrar.